package com.hmall.gateway.filters;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpHeaders;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

//自定义全局过滤器,继承全局过滤器和优先级接口
@Component
public class MyGlobalFilter implements GlobalFilter,Ordered{
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        //TODO 模拟登录校验逻辑
        ServerHttpRequest request=exchange.getRequest();
        //获取请求头
        HttpHeaders headers =request.getHeaders();
        System.out.println("headers="+headers);
        //放行给下一个过滤器
        return chain.filter(exchange);
    }


    /**
     * * 设置过滤器执行顺序，值越小优先级越高
     * @return
     */
    @Override
    public int getOrder() {
        return 0;
    }
}

